Analysis of interatomic Contacts of Structural Units in PDB entry:
2ISA


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 2ISA entry

There are 16 chains in PDB entry 2ISA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 3ARG 52
A
 HIS 54SER 484
B
 SER 3ARG 52
B
 HIS 54SER 484
C
 SER 3ARG 52
C
 HIS 54SER 484
D
 SER 3ARG 52
D
 HIS 54SER 484
E
 SER 3ARG 52
E
 HIS 54SER 484
F
 SER 3ARG 52
F
 HIS 54SER 484
G
 SER 3ARG 52
G
 HIS 54SER 484
H
 SER 3ARG 52
H
 HIS 54SER 484
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are173 helices in PDB entry 2ISA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
33 44Right-handed alpha
Helix 2
2
A
76 80Right-handed 310
Helix 3
3
A
136 138Right-handed 310
Helix 4
4
A
139 148Right-handed alpha
Helix 5
5
A
157 167Right-handed alpha
Helix 6
6
A
168 170Right-handed 310
Helix 7
7
A
171 180Right-handed alpha
Helix 8
8
A
181 184Right-handed 310
Helix 9
9
A
187 191Right-handed 310
Helix 10
10
A
225 236Right-handed alpha
Helix 11
11
A
238 250Right-handed alpha
Helix 12
12
A
266 270Right-handed 310
Helix 13
13
A
303 308Right-handed alpha
Helix 14
14
A
327 346Right-handed alpha
Helix 15
15
A
348 356Right-handed 310
Helix 16
16
A
393 397Right-handed 310
Helix 17
17
A
411 415Right-handed 310
Helix 18
18
A
419 429Right-handed alpha
Helix 19
19
A
430 445Right-handed alpha
Helix 20
20
A
449 464Right-handed alpha
Helix 21
21
A
464 476Right-handed alpha
Helix 22
22
A
478 482Right-handed 310
Helix 23
23
B
33 44Right-handed alpha
Helix 24
24
B
76 80Right-handed 310
Helix 25
25
B
136 138Right-handed 310
Helix 26
26
B
139 148Right-handed alpha
Helix 27
27
B
157 168Right-handed alpha
Helix 28
28
B
171 180Right-handed alpha
Helix 29
29
B
181 184Right-handed 310
Helix 30
30
B
187 191Right-handed 310
Helix 31
31
B
225 236Right-handed alpha
Helix 32
32
B
238 250Right-handed alpha
Helix 33
33
B
266 270Right-handed 310
Helix 34
34
B
303 308Right-handed alpha
Helix 35
35
B
327 346Right-handed alpha
Helix 36
36
B
348 356Right-handed 310
Helix 37
37
B
393 397Right-handed 310
Helix 38
38
B
411 415Right-handed 310
Helix 39
39
B
419 429Right-handed alpha
Helix 40
40
B
430 445Right-handed alpha
Helix 41
41
B
449 464Right-handed alpha
Helix 42
42
B
464 476Right-handed alpha
Helix 43
43
B
478 482Right-handed 310
Helix 44
44
C
33 44Right-handed alpha
Helix 45
45
C
76 80Right-handed 310
Helix 46
46
C
136 138Right-handed 310
Helix 47
47
C
139 148Right-handed alpha
Helix 48
48
C
157 167Right-handed alpha
Helix 49
49
C
168 170Right-handed 310
Helix 50
50
C
171 180Right-handed alpha
Helix 51
51
C
181 184Right-handed 310
Helix 52
52
C
187 191Right-handed 310
Helix 53
53
C
225 236Right-handed alpha
Helix 54
54
C
238 250Right-handed alpha
Helix 55
55
C
266 270Right-handed 310
Helix 56
56
C
303 308Right-handed alpha
Helix 57
57
C
327 346Right-handed alpha
Helix 58
58
C
348 356Right-handed 310
Helix 59
59
C
393 397Right-handed 310
Helix 60
60
C
411 415Right-handed 310
Helix 61
61
C
419 428Right-handed alpha
Helix 62
62
C
430 445Right-handed alpha
Helix 63
63
C
449 464Right-handed alpha
Helix 64
64
C
464 476Right-handed alpha
Helix 65
65
C
478 482Right-handed 310
Helix 66
66
D
33 44Right-handed alpha
Helix 67
67
D
76 80Right-handed 310
Helix 68
68
D
136 138Right-handed 310
Helix 69
69
D
139 148Right-handed alpha
Helix 70
70
D
157 167Right-handed alpha
Helix 71
71
D
168 170Right-handed 310
Helix 72
72
D
171 180Right-handed alpha
Helix 73
73
D
181 184Right-handed 310
Helix 74
74
D
187 191Right-handed 310
Helix 75
75
D
225 236Right-handed alpha
Helix 76
76
D
238 250Right-handed alpha
Helix 77
77
D
266 270Right-handed 310
Helix 78
78
D
303 308Right-handed alpha
Helix 79
79
D
327 346Right-handed alpha
Helix 80
80
D
348 356Right-handed 310
Helix 81
81
D
393 397Right-handed 310
Helix 82
82
D
411 415Right-handed 310
Helix 83
83
D
419 428Right-handed alpha
Helix 84
84
D
430 445Right-handed alpha
Helix 85
85
D
449 464Right-handed alpha
Helix 86
86
D
464 476Right-handed alpha
Helix 87
87
D
478 482Right-handed 310
Helix 88
88
E
33 44Right-handed alpha
Helix 89
89
E
76 80Right-handed 310
Helix 90
90
E
136 138Right-handed 310
Helix 91
91
E
139 148Right-handed alpha
Helix 92
92
E
157 167Right-handed alpha
Helix 93
93
E
168 170Right-handed 310
Helix 94
94
E
171 179Right-handed alpha
Helix 95
95
E
180 184Right-handed 310
Helix 96
96
E
187 191Right-handed 310
Helix 97
97
E
225 236Right-handed alpha
Helix 98
98
E
238 250Right-handed alpha
Helix 99
99
E
266 270Right-handed 310
Helix 100
100
E
303 308Right-handed alpha
Helix 101
101
E
327 346Right-handed alpha
Helix 102
102
E
348 356Right-handed 310
Helix 103
103
E
393 397Right-handed 310
Helix 104
104
E
411 415Right-handed 310
Helix 105
105
E
419 429Right-handed alpha
Helix 106
106
E
430 445Right-handed alpha
Helix 107
107
E
449 464Right-handed alpha
Helix 108
108
E
464 475Right-handed alpha
Helix 109
109
E
478 482Right-handed 310
Helix 110
110
F
33 44Right-handed alpha
Helix 111
111
F
76 80Right-handed 310
Helix 112
112
F
136 138Right-handed 310
Helix 113
113
F
139 148Right-handed alpha
Helix 114
114
F
157 168Right-handed alpha
Helix 115
115
F
171 180Right-handed alpha
Helix 116
116
F
181 184Right-handed 310
Helix 117
117
F
187 191Right-handed 310
Helix 118
118
F
225 236Right-handed alpha
Helix 119
119
F
238 250Right-handed alpha
Helix 120
120
F
266 270Right-handed 310
Helix 121
121
F
303 308Right-handed alpha
Helix 122
122
F
327 346Right-handed alpha
Helix 123
123
F
348 352Right-handed 310
Helix 124
124
F
393 397Right-handed 310
Helix 125
125
F
411 415Right-handed 310
Helix 126
126
F
419 429Right-handed alpha
Helix 127
127
F
430 445Right-handed alpha
Helix 128
128
F
449 464Right-handed alpha
Helix 129
129
F
464 475Right-handed alpha
Helix 130
130
F
478 482Right-handed 310
Helix 131
131
G
33 44Right-handed alpha
Helix 132
132
G
76 80Right-handed 310
Helix 133
133
G
136 138Right-handed 310
Helix 134
134
G
139 148Right-handed alpha
Helix 135
135
G
157 167Right-handed alpha
Helix 136
136
G
168 170Right-handed 310
Helix 137
137
G
171 180Right-handed alpha
Helix 138
138
G
181 184Right-handed 310
Helix 139
139
G
187 191Right-handed 310
Helix 140
140
G
225 236Right-handed alpha
Helix 141
141
G
238 250Right-handed alpha
Helix 142
142
G
266 270Right-handed 310
Helix 143
143
G
303 308Right-handed alpha
Helix 144
144
G
327 346Right-handed alpha
Helix 145
145
G
348 356Right-handed 310
Helix 146
146
G
393 397Right-handed 310
Helix 147
147
G
411 415Right-handed 310
Helix 148
148
G
419 429Right-handed alpha
Helix 149
149
G
430 445Right-handed alpha
Helix 150
150
G
449 464Right-handed alpha
Helix 151
151
G
464 475Right-handed alpha
Helix 152
152
G
478 482Right-handed 310
Helix 153
153
H
33 44Right-handed alpha
Helix 154
154
H
76 80Right-handed 310
Helix 155
155
H
136 138Right-handed 310
Helix 156
156
H
139 148Right-handed alpha
Helix 157
157
H
157 168Right-handed alpha
Helix 158
158
H
171 180Right-handed alpha
Helix 159
159
H
181 184Right-handed 310
Helix 160
160
H
187 191Right-handed 310
Helix 161
161
H
225 236Right-handed alpha
Helix 162
162
H
238 250Right-handed alpha
Helix 163
163
H
266 270Right-handed 310
Helix 164
164
H
303 308Right-handed alpha
Helix 165
165
H
327 346Right-handed alpha
Helix 166
166
H
348 356Right-handed 310
Helix 167
167
H
393 397Right-handed 310
Helix 168
168
H
411 415Right-handed 310
Helix 169
169
H
419 428Right-handed alpha
Helix 170
170
H
430 445Right-handed alpha
Helix 171
171
H
449 464Right-handed alpha
Helix 172
172
H
464 475Right-handed alpha
Helix 173
173
H
478 482Right-handed 310
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There are 16 sheets in PDB entry 2ISA. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P,

There are 2 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
22 23first strand
Strand 2
B
407 408anti-parallel
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There are 11 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
322 323first strand
Strand 2
A
199 202anti-parallel
Strand 3
A
208 217anti-parallel
Strand 4
A
255 264anti-parallel
Strand 5
A
290 299anti-parallel
Strand 6
A
57 66anti-parallel
Strand 7
A
85 93anti-parallel
Strand 8
A
110 117anti-parallel
Strand 9
A
120 127anti-parallel
Strand 10
A
193 194anti-parallel
Strand 11
A
208 217anti-parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
407 408first strand
Strand 2
B
22 23anti-parallel
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There are 11 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
322 323first strand
Strand 2
B
199 202anti-parallel
Strand 3
B
208 217anti-parallel
Strand 4
B
255 264anti-parallel
Strand 5
B
290 299anti-parallel
Strand 6
B
57 66anti-parallel
Strand 7
B
85 93anti-parallel
Strand 8
B
110 117anti-parallel
Strand 9
B
120 127anti-parallel
Strand 10
B
193 194anti-parallel
Strand 11
B
208 217anti-parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
22 23first strand
Strand 2
D
407 408anti-parallel
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There are 11 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
322 323first strand
Strand 2
C
199 202anti-parallel
Strand 3
C
208 217anti-parallel
Strand 4
C
255 264anti-parallel
Strand 5
C
290 299anti-parallel
Strand 6
C
57 66anti-parallel
Strand 7
C
85 93anti-parallel
Strand 8
C
110 117anti-parallel
Strand 9
C
120 127anti-parallel
Strand 10
C
193 194anti-parallel
Strand 11
C
208 217anti-parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
407 408first strand
Strand 2
D
22 23anti-parallel
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There are 11 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
322 323first strand
Strand 2
D
199 202anti-parallel
Strand 3
D
208 217anti-parallel
Strand 4
D
255 264anti-parallel
Strand 5
D
290 299anti-parallel
Strand 6
D
57 66anti-parallel
Strand 7
D
85 93anti-parallel
Strand 8
D
110 117anti-parallel
Strand 9
D
120 127anti-parallel
Strand 10
D
193 194anti-parallel
Strand 11
D
208 217anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
22 23first strand
Strand 2
F
407 408anti-parallel
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There are 11 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
322 323first strand
Strand 2
E
199 202anti-parallel
Strand 3
E
208 217anti-parallel
Strand 4
E
255 264anti-parallel
Strand 5
E
290 299anti-parallel
Strand 6
E
57 66anti-parallel
Strand 7
E
85 93anti-parallel
Strand 8
E
110 117anti-parallel
Strand 9
E
120 127anti-parallel
Strand 10
E
193 194anti-parallel
Strand 11
E
208 217anti-parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
407 408first strand
Strand 2
F
22 23anti-parallel
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There are 11 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
322 323first strand
Strand 2
F
199 202anti-parallel
Strand 3
F
208 217anti-parallel
Strand 4
F
255 264anti-parallel
Strand 5
F
290 299anti-parallel
Strand 6
F
57 66anti-parallel
Strand 7
F
85 93anti-parallel
Strand 8
F
110 117anti-parallel
Strand 9
F
120 127anti-parallel
Strand 10
F
193 194anti-parallel
Strand 11
F
208 217anti-parallel
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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
22 23first strand
Strand 2
H
407 408anti-parallel
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There are 11 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
322 323first strand
Strand 2
G
199 202anti-parallel
Strand 3
G
208 217anti-parallel
Strand 4
G
255 264anti-parallel
Strand 5
G
290 299anti-parallel
Strand 6
G
57 66anti-parallel
Strand 7
G
85 93anti-parallel
Strand 8
G
110 117anti-parallel
Strand 9
G
120 127anti-parallel
Strand 10
G
193 194anti-parallel
Strand 11
G
208 217anti-parallel
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There are 2 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
407 408first strand
Strand 2
H
22 23anti-parallel
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There are 11 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
322 323first strand
Strand 2
H
199 202anti-parallel
Strand 3
H
208 217anti-parallel
Strand 4
H
255 264anti-parallel
Strand 5
H
290 299anti-parallel
Strand 6
H
57 66anti-parallel
Strand 7
H
85 93anti-parallel
Strand 8
H
110 117anti-parallel
Strand 9
H
120 127anti-parallel
Strand 10
H
193 194anti-parallel
Strand 11
H
208 217anti-parallel
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